Everyone has seen this next clip.
Tootsie Roll added a lollipop variation way back in the day, and while the animation is as simplistic as all let go, there is plenty of star power to be had. It's widely believed that no less than Paul Winchell was the voice of the owl. The cow, I believe, may have been Frank Nelson. Now, don't kid yourselves. We've all asked the musical question, "how many licks does it take to get to the Tootsie Roll center of a Tootsie Pop?".
If you want an expert opinion from someone who actually tried it, the answer falls closer to 10, but then the joke at the end of this clip loses its flavor.